Return JSONResponse in ExceptionMiddleware

connexion/middleware/exceptions.py

@@ -1,10 +1,8 @@
-import json
-
 from starlette.exceptions import \
     ExceptionMiddleware as StarletteExceptionMiddleware
 from starlette.exceptions import HTTPException
 from starlette.requests import Request
-from starlette.responses import Response
+from starlette.responses import JSONResponse
 
 from connexion.exceptions import ProblemException, problem
 
@@ -17,7 +15,7 @@ def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.add_exception_handler(ProblemException, self.problem_handler)
 
-    def problem_handler(self, _, exception: ProblemException):
+    def problem_handler(self, _, exception: ProblemException) -> JSONResponse:
         """
         :type exception: Exception
         """
@@ -31,14 +29,14 @@ def problem_handler(self, _, exception: ProblemException):
             ext=exception.ext
         )
 
-        return Response(
-            content=json.dumps(connexion_response.body),
+        return JSONResponse(
+            content=connexion_response.body,
             status_code=connexion_response.status_code,
             media_type=connexion_response.mimetype,
             headers=connexion_response.headers
         )
 
-    def http_exception(self, request: Request, exc: HTTPException) -> Response:
+    def http_exception(self, request: Request, exc: HTTPException) -> JSONResponse:
         try:
             headers = exc.headers
         except AttributeError:
@@ -50,8 +48,8 @@ def http_exception(self, request: Request, exc: HTTPException) -> Response:
                                      status=exc.status_code,
                                      headers=headers)
 
-        return Response(
-            content=json.dumps(connexion_response.body),
+        return JSONResponse(
+            content=connexion_response.body,
             status_code=connexion_response.status_code,
             media_type=connexion_response.mimetype,
             headers=connexion_response.headers